The 70mm long Leofoto NF-200 lens base with Arca-Swiss quick release plate has been developed as an alternative lens base for the Nikon AF-S 70-200mm f/2.8G ED VRII. Instead of the standard tripod screw you can now use a longer and wider Arca-Swiss quick coupling for more stability and safety. you can safely and quickly mount the lens on any Arca-Swiss compatible tripod head. You simply click the NF-200 lens foot under the lens in place of the original, interchangeable lens foot and then screw it securely in place with the large rotary knob.